UNSPSC 47101532: Settling tanks

UNSPSC 47101532 Settling tanks is a Commodity code covering replacement drive shafts, mechanisms, and rehabilitation or construction of settling and clarifying equipment at municipal water and wastewater treatment plants. State and local governments procure settling tank components and associated mechanical systems as part of facility upgrades, repairs, and capital projects to maintain treatment operations. Work includes equipment procurement, installation services, concrete structure construction, chemical injection systems integration, and comprehensive facility rehabilitation to meet regulatory requirements and operational reliability.

Recent opportunities show activity concentrated among Florida counties and cities, Georgia water authorities, and state-level water departments. The City of Holly Hill, Florida procured a sole-source WesTech DS43 drive shaft replacement for softener #2 at its Water Treatment Plant in October 2026 (solicitation SS202001), totaling $113,067 including turnkey installation; Collier County, Florida issued multiple IFBs for blend tank construction and settling/clarifier rehabilitation at the South County Regional Water Treatment Plant with bids due July and September 2026 at estimated budgets of $3.29 to $4.27 million; the Macon Water Authority, Georgia solicited sealed bids for rebuild of gravity thickeners and clarifier #6 at Rocky Creek WRF (IFB PE33561NONST2027000000073, due October 20, 2026); Cobb County, Georgia posted an RFQ for secondary clarifier rehabilitation at South Cobb Water Reclamation Facility (due August 27, 2026) and a master task order RFQ for water and wastewater facilities engineering services (due October 22, 2026); the City of Rome, Georgia sought design-build SOQs for secondary clarifier rehabilitation (due November 3, 2026); the California Department of Water Resources issued an IFB for water treatment system services including clarifiers and filters across four field divisions (IFB 10214188, due June 9, 2026); and Hillsborough County, Florida issued a sole-source notice for Wet Well Wizard aeration systems across 60–80 units annually over five years at $5.371 million total (challenge deadline September 22, 2026). Geographic activity spans Florida, Georgia, California, Oregon, and Michigan, with Florida and Georgia accounting for the densest recent posting volume.